Iam 27yrs old,female,not married.am having the habit of eating slate pencils from my childhood,i have a doubt that is this habit effect on skin colour,now im using whitening cream for face,but when i stopped using it immediately i turn black.is it because of eating slate pencils? What are the eatables to improve my skin colour? What are the health problems,is it leads to aneamia,am suffering from aneamia